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[. . . ] INSTRUCTION MANUAL
VHF MARINE TRANSCEIVER
iM72
This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference.
SAFETY TRAINING INFORMATION
Your Icom radio generates RF electromagnetic energy during transmit mode. This radio has been evaluated for compliance at the distance of 2. 5 cm with the FCC RF exposure limits for "Occupational Use Only". In addition, your Icom radio complies with the folW ARN ING lowing Standards and Guidelines with regard to RF energy and electromagnetic energy levels and evaluation of such levels for exposure to humans: · FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields. [. . . ] several times to select the desired channel group (USA, INT, CAN) to be programmed. to select the call channel.
· "CALL" and call channel number appear.
I Lock function
This function electronically locks all keys (except for [PTT], [ ] and [H/L·LOCK]) to prevent accidental channel changes and function access. Appears while the lock function is in use.
e Push and hold [16·9] again for 3 sec.
(until a long beep changes to 2 short beeps) to enter call channel program-
ming condition.
· Call channel number to be programmed blinks. YZ r Push [Y]/[Z] to select the desired channel.
I Monitor function
The monitor function releases the noise squelch mute to check the volume level. Push and hold [ tion.
·" " and "
] for 1 sec. Appears while the monitor function is in use.
t Push [16·9] to program the displayed channel as the call channel.
· The call channel number stops blinking.
Push for 1 sec.
10
BASIC OPERATION
4
I Adjusting the squelch level
YZ To adjust the IC-M72's squelch level, use the [Y]/[Z] keys as desired below. In order to receive signals properly, as well as for the scan to function effectively, the squelch must be adjusted to the proper level. q Push [ YZ ], then adjust the squelch level with [Y]/[Z].
- "SQL" and the squelch level are displayed. - There are 11 squelch levels to choose from: OP is completely open; 10 is tight squelch; 1 is loose squelch level. - When no key is pushed for 5 sec. , the transceiver returns to normal condition.
I Voice scrambler operation
(available with some versions only)
D Activating the scrambler
The voice scrambler provides private communications. In order to receive or send scrambled transmissions, you must activate the scrambler function first. q Select an operating channel other than Channel 16, 70 or weather channels. w While pushing and holding [ ], push [SCAN·DUAL].
· "SCRM" appears.
4
w Push [
] again to return to normal operating mode.
Shows the squelch level. Appears during squelch level adjustment
Push
e To turn the scrambler function OFF, repeat step w.
· "SCRM" disappears.
Appears when the voice scrambler function is in use.
D Programming scramble codes
I Backlighting function
This function is convenient for nighttime operation. 19) Push any key other than [PTT] to turn the backlighting ON.
· The backlighting is automatically turned OFF after 5 sec. of inactivity.
There are 32 codes (1 to 32) available for programming. In order to understand each other, all transceivers in your group must use the same scramble code, as well as the same scrambler unit. 22 for "Scrambler code" setting details.
11
4
BASIC OPERATION
I VOX function
NOTE: An optional headset and optional headset adapter are required for the VOX operation. The VOX function (voice operated transmission) starts transmitting when you speak into the headset's microphone. The IC-M72 automatically returns to receive mode when you stop talking. Push and hold [ ], then push [H/L·LOCK] to turn the VOX function ON or OFF while connecting the headset and optional headset adapter to [SP MIC] connector.
· "VOX" appears on the LCD while the VOX function turns ON. 22) · During scan, dual/tri-watch or on a transmission inhibited channel, the VOX function will not be activated.
I Channel naming
The IC-M72 has a capability to assign up to 10-character channel names or comments for each operating channel, including each weather channel. [. . . ] 29
11
No sound speaker.
TROUBLESHOOTING
POSSIBLE CAUSE SOLUTION · Recharge the battery pack. · Push and hold both [16·9] and [H/L·LOCK] to drain water from the speaker. 18 --
PROBLEM
The transceiver does not · The battery is depleted. · Water has entered to [SP MIC] connector.
Transmitting is impossible, · Some channels are for low power or receive · Change channels. [. . . ]

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